/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.runners;



import com.google.auto.value.AutoValue;

import com.bff.gaia.unified.sdk.Pipeline;

import com.bff.gaia.unified.sdk.annotations.Internal;

import com.bff.gaia.unified.sdk.transforms.PTransform;

import com.bff.gaia.unified.sdk.values.PInput;

import com.bff.gaia.unified.sdk.values.POutput;

import com.bff.gaia.unified.sdk.values.PValue;

import com.bff.gaia.unified.sdk.values.TupleTag;



import java.util.Map;



/**

 * <b><i>For internal use only; no backwards-compatibility guarantees.</i></b>

 *

 * <p>Inputs and outputs are stored in their expanded forms, as the condensed form of a composite

 * {@link PInput} or {@link POutput} is a language-specific concept, and {@link AppliedPTransform}

 * represents a possibly cross-language transform for which no appropriate composite type exists in

 * the Java SDK.

 *

 * @param <InputT> transform input type

 * @param <OutputT> transform output type

 * @param <TransformT> transform type

 */

@Internal

@AutoValue

public abstract class AppliedPTransform<

    InputT extends PInput,

    OutputT extends POutput,

    TransformT extends PTransform<? super InputT, OutputT>> {

  // To prevent extension outside of this package.

  AppliedPTransform() {}



  public static <

          InputT extends PInput,

          OutputT extends POutput,

          TransformT extends PTransform<? super InputT, OutputT>>

  AppliedPTransform<InputT, OutputT, TransformT> of(

          String fullName,

          Map<TupleTag<?>, PValue> input,

          Map<TupleTag<?>, PValue> output,

          TransformT transform,

          Pipeline p) {

    return new AutoValue_AppliedPTransform<>(fullName, input, output, transform, p);

  }



  public abstract String getFullName();



  public abstract Map<TupleTag<?>, PValue> getInputs();



  public abstract Map<TupleTag<?>, PValue> getOutputs();



  public abstract TransformT getTransform();



  public abstract Pipeline getPipeline();

}